Jakob Bengel - 1930s. Liberation of everyday, ‘artifical’ materials, those having no intrinsic value, for jewelry design was first possible in Europe in the early years of the 20th century. First-rate artists and designers experimented with everything that lent itself to jewelry - glass, horn, enamel, textiles, brass and other alloys, e.g., tombac; with hard rubber, celluloid, bakelite, paper, paint and wood. ‘Material snobbism’ was rejected by young designers; suited to Art Deco and Bauhaus